If you get these two messages from your Displays:
"Device is offline. Will try to reload shortly."
“Oops An error has occurred. We are sorry for the inconvenience.”
and you are using a different browser than kioskbrowser. You might get an error screen similar to this (the white patches are due to anonymization)
This is fixed by editing config files.
Find and outcomment Line 18 From: setInterval(Main.checkNetworkStatus, 10000);
In the file : "Views\Display\ScreenContainer.cshtml"
Find and outcomment Line 80 From: setInterval(checkNetworkconnection, 30000);